12979 has 2 divisors, whose sum is σ = 12980. Its totient is φ = 12978.

The previous prime is 12973. The next prime is 12983. The reversal of 12979 is 97921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12979 - 2¹³ = 4787 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6489 + 6490.

It is an arithmetic number, because the mean of its divisors is an integer number (6490).

2¹²⁹⁷⁹ is an apocalyptic number.

12979 is a deficient number, since it is larger than the sum of its proper divisors (1).

12979 is an equidigital number, since it uses as much as digits as its factorization.

12979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1134, while the sum is 28.

The square root of 12979 is about 113.9254141972. The cubic root of 12979 is about 23.5006790207.

The spelling of 12979 in words is "twelve thousand, nine hundred seventy-nine".